CVE-2024-26898
Vulnerability from cvelistv5
Published
2024-04-17 10:27
Modified
2024-11-05 09:17
Summary
aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website


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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naoe: fix the potential use-after-free problem in aoecmd_cfg_pkts\n\nThis patch is against CVE-2023-6270. The description of cve is:\n\n  A flaw was found in the ATA over Ethernet (AoE) driver in the Linux\n  kernel. The aoecmd_cfg_pkts() function improperly updates the refcnt on\n  `struct net_device`, and a use-after-free can be triggered by racing\n  between the free on the struct and the access through the `skbtxq`\n  global queue. This could lead to a denial of service condition or\n  potential code execution.\n\nIn aoecmd_cfg_pkts(), it always calls dev_put(ifp) when skb initial\ncode is finished. But the net_device ifp will still be used in\nlater tx()-\u003edev_queue_xmit() in kthread. Which means that the\ndev_put(ifp) should NOT be called in the success path of skb\ninitial code in aoecmd_cfg_pkts(). Otherwise tx() may run into\nuse-after-free because the net_device is freed.\n\nThis patch removed the dev_put(ifp) in the success path in\naoecmd_cfg_pkts(), and added dev_put() after skb xmit in tx()."
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    "dateReserved": "2024-02-19T14:20:24.186Z",
    "dateUpdated": "2024-11-05T09:17:50.786Z",
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But the net_device ifp will still be used in\\nlater tx()-\u003edev_queue_xmit() in kthread. Which means that the\\ndev_put(ifp) should NOT be called in the success path of skb\\ninitial code in aoecmd_cfg_pkts(). Otherwise tx() may run into\\nuse-after-free because the net_device is freed.\\n\\nThis patch removed the dev_put(ifp) in the success path in\\naoecmd_cfg_pkts(), and added dev_put() after skb xmit in tx().\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: aoe: soluciona el posible problema de use-after-free en aoecmd_cfg_pkts. Este parche es contra CVE-2023-6270. La descripci\u00f3n de cve es: Se encontr\u00f3 una falla en el controlador ATA sobre Ethernet (AoE) en el kernel de Linux. La funci\u00f3n aoecmd_cfg_pkts() actualiza incorrectamente el refcnt en `struct net_device`, y se puede activar un use-after-free corriendo entre lo libre en la estructura y el acceso a trav\u00e9s de la cola global `skbtxq`. 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